CCE Advanced HPA

Add-on Overview

CCE Advanced HPA (cce-hpa-controller) is an in-house add-on, which can be used to flexibly scale in or out Deployments based on metrics such as CPU usage and memory usage.

Add-on Parameters

Table 1 Parameters

Parameter	Mandatory	Type	Description
basic	No	object	Basic configuration parameters, which do not need to be specified
flavor	Yes	Table 2 object	Flavor parameters
custom	Yes	Table 3 object	Custom parameters

Table 2 flavor

Parameter	Mandatory	Type	Description
replicas	Yes	String	Number of pods. The default value is 2.
resources	Yes	resources object	Container resource (CPU and memory) quotas.

Table 3 custom

Parameter	Mandatory	Type	Description
multiAZEnable	No	bool	Whether to enable the forcible mode of multi-AZ deployment for the deployment component. The default value is false. Deployment pods of the add-on will be forcibly scheduled to nodes in different AZs. If there are fewer AZs than pods, the extra pods will fail to run. If both multiAZEnable and multiAZBalance are set to true, the settings of multiAZBalance take effect, which means, the equivalent mode of multi-AZ deployment is used.
multiAZBalance	No	bool	Whether to enable the equivalent mode of multi-AZ deployment for the deployment component. The default value is false. Deployment pods of the add-on are evenly scheduled to the nodes in the cluster in each AZ. If a new AZ is added, it is recommended that you increase add-on pods for cross-AZ HA deployment. With the equivalent multi-AZ deployment, the difference between the number of add-on pods in different AZs will be less than or equal to 1. If resources in one of the AZs are insufficient, pods cannot be scheduled to that AZ.
tolerations	No	Array of Table 5	Toleration configuration
node_match_expressions	No	Array of Table 6	Add-on pod affinity configuration

Table 4 Data structure of the resources field

Parameter	Mandatory	Type	Description
limitsCpu	Yes	String	CPU size limit (unit: m)
limitsMem	Yes	String	Memory size limit (unit: Mi)
name	Yes	String	Add-on name. The value is fixed at customedhpa-controller.
requestsCpu	Yes	String	Requested CPU size (unit: m)
requestsMem	Yes	String	Requested memory size (unit: Mi)

Table 5 Taints and tolerations

Parameter	Mandatory	Type	Description
key	No	String	Taint key
effect	No	String	Taint policy
operator	No	String	Operator
tolerationSeconds	No	Int	Toleration time window

Table 6 nodeMatchExpresssion node affinity

Parameter	Mandatory	Type	Description
key	No	String	Taint key
values	No	List<String>	Node affinity name
operator	No	String	Operator

Example Request

{
    "kind": "Addon",
    "apiVersion": "v3",
    "metadata": {
        "annotations": {
            "addon.install/type": "install"
        }
    },
    "spec": {
        "clusterID": "2292498e-******-0255ac1001ba",
        "version": "1.4.2",
        "addonTemplateName": "cce-hpa-controller",
        "values": {
                        "basic": {
                "basickey":"val"
            },
            "flavor": {
                "replicas": 1,
                "resources": [{
                    "limitsCpu": "100m",
                    "limitsMem": "300Mi",
                    "name": "customedhpa-controller",
                    "requestsCpu": "100m",
                    "requestsMem": "300Mi"
                }]
            },
            "custom": {
                "multiAZBalance": false,
                "multiAZEnabled": false,
                "node_match_expressions": [],
                "tolerations": [{
                    "key": "node.kubernetes.io/not-ready",
                    "operator": "Exists",
                    "effect": "NoExecute",
                    "tolerationSeconds": 60
                },
                {
                    "key": "node.kubernetes.io/unreachable",
                    "operator": "Exists",
                    "effect": "NoExecute",
                    "tolerationSeconds": 60
                }]
            }
        }
    }
}

last updated: 2024-12-13 13:16 UTC - commit: 637711c1b4cbb67ff8f1429f87a3eb6e1d7d78bc